OpenBao's Inline Auth Incorrectly Redacted Headers

MEDIUM 5.4CVE-2026-46358 · BIT-openbao-2026-46358 · GHSA-q8cj-789h-vg24 · Published 07/08/2026 · updated 09/09/2026

In short

CVE-2026-46358 is a MEDIUM (CVSS 5.4) vulnerability affecting github.com/openbao/openbao.
Chance of exploitation in the next 30 days (EPSS): 0.21%, higher than 11.3% of all vulnerabilities.
Fix: update to 2.5.4 or later.

Package	Affected versions	Patched versions
github.com/openbao/openbao Go	`< 2.5.4all versions`	`2.5.4`

Description

Impact

OpenBao's inline auth functionality incorrectly redacted audit log entries, resulting in non-auth headers being removed and auth-related headers being retained in cleartext. This requires an attacker to compromise access to the audit device. Operators should review leaked source authentication material and rotate it as appropriate.

Patches

This is fixed in OpenBao v2.5.4.

Resources

https://github.com/openbao/openbao/issues/3074

NVD description

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.4, OpenBao's inline auth functionality incorrectly redacted audit log entries, resulting in non-auth headers being removed and auth-related headers being retained in cleartext. This requires an attacker to compromise access to the audit device. Operators should review leaked source authentication material and rotate it as appropriate. This is fixed in OpenBao v2.5.4.